public Gost(string message, string key)
{
Message = message;
Key = key;
RightPart = Utills.StickedBinaryMsg(Message.Substring(Message.Length / 2, Message.Length / 2));
LeftPart = Utills.StickedBinaryMsg(Message.Substring(0, Message.Length / 2));
KeyX0 = Utills.StickedBinaryMsg(Key);
RightWithKey = Utills.Modulo2Pow32(RightPart, KeyX0);
Substituted = SubstituteElements(RightWithKey);
Shifted = Utills.Shift(Substituted, -11);
Result = Utills.Modulo2(LeftPart, Shifted);
}
public Des(string message, string key)
{
Message = message;
Key = key;
LPart = message.Substring(0, message.Length / 2);
RPart = message.Substring(message.Length / 2, message.Length / 2);
BinaryMessage = Utills.StickedBinaryMsg(Message);
InitialPermutedMessage = PermuteElements(BinaryMessage, InitialPermutation);
LPart = InitialPermutedMessage.Substring(0, InitialPermutedMessage.Length / 2);
RPart = InitialPermutedMessage.Substring(InitialPermutedMessage.Length / 2, InitialPermutedMessage.Length / 2);
ExtendeRBlock = ExtendBlockSize(RPart);
BinaryKey = GenerateKey(Utills.StickedBinaryMsg(Key));
KeyWithExtendedR = Utills.Modulo2(ExtendeRBlock, BinaryKey, 48);
SBlockSubstituted = SBlockSubstitution(KeyWithExtendedR, SubstitutionBoxes);
SBlockSubstituted = PermuteElements(SBlockSubstituted, ExpansionFunction);
ConcatedRL = string.Concat(LPart + SBlockSubstituted);
FinalPermutedMessage = PermuteElements(ConcatedRL, FinalPermutation);
}